Shade roller



287. Ron 50am 0R EMME@ SOUPLINGS, 5

Aug. 25,' 1925. D HYT 1,550,701

SHADE ROLLER Filed April 12. 1924 Eig- Ein-l EEA- azu'el Hq?? dqyumcm),J.

Patented Aug. 25, 1925.

UNITED STATES EXAMNi-i PATENT OFFICE.

DANIEL HOYT, OF EAST' ORANGE, NEW JERSEY, ASSIGNOR TO THE NATIONAL LOCKWASHER COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SHADE ROLLER.

Application filed April 12, 1924. Serial No. 705,986.

To all whom, t may concern.'

Be it known that I, DANIEL l-IOYT, a citizen of the United States,residing at East Orange, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Shade Rollers; andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to extensible metal rollers such as are generallyused for shades of railroad car windows.

These rollers are usually made of thin tin and in two sections, namely,a main section which carries a pintle at one end and has an open socketat the other end, and a plug section which also has a pntle at one endand an open resilient socket at the other end, the plug socket beingtelescoped within the socket of the main section so that the distancebetween the pintles may be lengthened or shortened.

rlhe plug socket is open on one side so that it may be slightlycollapsed to readily enter the socket of the main section, and some sortof a device is employed to secure the two telescoping parts at anyadjusted position so as to effect the desired length of roller.

In the past it has been found difficult to hold these telescopingsections so that the roller as a whole would not be weak and wobbly,particularly when the roller is extended more than an inch.

The object of this invention is to provide means which will securelylock these telescoping sockets together, even when they are engaged fora short distance only, so that the roller as a whole will be rigid andwill not be deformed in the slightest degree.

Referring to the accompanying drawing Figure l is an elevation of ashade roller, as it appears when the telescoping parts are securedtogether according to this improvementlFigure 2 is a section at the line2 2 of Figure 1 Figure 3 is a detail cross section through the socketportion of the plug and taken at the line 3 3 of Figure 1 Figure 4 is alongitudinal section at the line 4 4 of Figure 1 Figure 5 is a sectionsimilar to Figure 2 but showing a modified form of the improvement suchas would be employed in the instance of some curtain rollers Figure 6 isa view similar to Figure 5 but showing a slight modification in theadaptation of the locking means Figure 7 is a perspective view of thelocking means employed in the construction .shown at Figure 6, theelements of the locklng means being separated and in the posit1onassumed immediately before assembly Figure 8 is a View similar to Figure6 but showing a slight modification in the manner of assembly of thelocking parts, and

Figure 9 is a detail perspective view of the assembled locking partsutilized in the construct-ion shown at Figure 8.

Similar numerals of reference denote like parts in the several figuresof the drawing.

Referring to Figures l, 2, 3 and 4, l designates the main roller sectionwhich terminates at its inner end in an open socket 2 and is providedwith the usual shade groove 3, and 4 is the plug section whichterminates at its inner end in an open socket 5 which is formed with aslot or cut away portion 6 that opens out through the end of the socket5, the latter being formed with the usual groove 7 that straddles thegroove 3 when the socket portions are assembled.

The locking device consists of two separate members 8, 9, which areinserted within the socket 5 so as to be wholly enclosed thereby, thesemembers having curved outer faces that conform to the inner wall of thissocket, and the member 9 is preferably formed with ears l0 between whichthe member 8 is assembled prior to insertion of the locking device as awhole within the socket 5, the object of this construction being toprevent any independent lengthwise sliding movements of these lockingmembers, and while this particular construction is advisable,nevertheless it will be readily understood that it is not absolutelynecessary.

In utilizing this locking member the locking members are first insertedwithin the socket 5 and the latter then inserted within the socket 2,the telescoping of these sockets being greatly facilitated by reason ofthe fact that the socket 5 may be slightly collapsed manually. Themember 8 has a threaded opening 11 therethrough, and the socket 2 has acircular countersunk opening 12, and when the two sockets have beentelescoped, the clamping members are moved until the threaded opening 11registers with the countersunk opening 12 whereupon the screw 13 isinserted through the opening 12 and driven partway through the opening11; the sockets then are telescoped to a sufficient degree to effect thedesired length of the roller as a whole, and the screw is then driventhrough the opening 11 and impinged against the member 9, and this willcause both of the locking members to separate and to thereby be forcedagainst the wall of the socket 5 so as to bind the latter firmly to thewall of the socket 2 throughout the length of the locking members. Thescrew is of such a length that when the locking members have been forcedto locking position, as above set forth, the head of the screw will beWithin the countersunk opening 12 so that it will not present anyobjectionable protuberance beyond the socket 2.

The above form of the approved locking ldevice is preferably employed inthe style of shade roller illustrated at Figures 1, 2, 3, and 4, butvarious makes of shade rollers differ in the formation of that part ofthe socket 5 which straddles the shade groove of the socket 2, andtherefore the drawings illustrate several modifications in theconstruction of the locking members which construction, while it couldreadily be employed with that form of shade roller heretofore described,is preferably utilized in connection with a well known form of shaderoller wherein a rectangular shaped grooved portion 14 is formed in thesocket 5 which grooved portion straddles the shade groove 3 in the mainsocket portion as hereinbefore described.

Referring to Figure 5, which illustrates the form of shade roller lastdescribed, the locking members are designated by the numerals 15 and 16,and the member 16 rests directly upon the upper wall of the rectangulargroove 14, while the member 15 has its outer surface conformed to theinner wall of the socket 5 and has a channel 17 lengthwise of its uppersurface to accommodate the countersunk opening 12 in the socket 2, andthere is a threaded perforation 18 extending through this channelportion, and the member 16 is preferably formed with ears 19 at each endso that the clamping members will be incapable of independent slidingmovements. YWhen these locking members illustrated at Figure 5 have beeninserted within the open socket 5 of the plug and the threadedperforation 18 alined with the opening 12, the screw 13 is insertedthrough this opening 12 and partly driven through the perforation 18,and the telescoping parts then adjusted to effect the desired length ofthe roller as a whole, whereupon the screw is driven firmly against themember 16 which will cause the portions of the socket 5 that flank therectangular groove 14C to be driven firmly against the inner wall of thesocket 2, while at the same time the curved surfaces of the member 15will be forced against the wall of the socket 5 thereby effecting thefirm locking of the two telescoping members throughout the length of theclamping members.

It is not necessary that the member 16 should rest upon the top of thegrooved portion 14, since this member can be provided with extensions20* whose outer surfaces are curved and conform to the wall of thesocket 5 as shown at Figure 6, so that when the screw is driven againstVthis member 16, these extensions 2O will be impinged firmly against thewall of the socket 5, and the parts locked together, as beforedescribed.

Referring to Figures 8 and 9 of the drawing, one locking member 21 isprecisely like the corresponding locking member illustrated at Figures5, 6, and 7, with the exception that the sides of this member areextended throughout a more complete arc of a circle while the lockingmember 22 is telescopically assembled within the member 21 and hasextensions 23 whose outer surfaces are curved to closely conform to theinner wall of the member 21, this member 22 being formed with ears 24 ateach end between 100 which the member 21 is assembled prior to theinsertion of the locking members within the socket 5, so that when thescrew 13 is driven against the member 22 the extended curved surfaces ofthe member 21 will be 105 forced against the wall of the socket 5 andthereby bind the telescoping sockets firmly together.

The constructions of the locking members shown at Figures 5, 6, 7, 8,and 9, all operate on precisely the same principle as that whichcharacterizes the construction shown at Figures 1, 2, 3, and 4, and allof these locking member constructions shown at Figures 5, 6, 7, 8, and9, 'are preferably made 115 of sheet metal.

Therefore, it will be understood that this invention is not limited toany special shape of the locking members, so long as the latter areforced by the action of the screw into firm clamping contact in themanner above described.

What is claimed is 1. A clamp for tubular telescoping elements,comprising complementary elongated separate members having theirlengthwise movements in unison and wholly enclosed within the smaller ofsaid elements and having curved outer surfaces that respectively conformto the inner face of said smaller 287. RGD JOINIS 0R CGUPLI NGS,

element at opposed locations, and means for the inner wall of saidsmaller tube in op- 15 spreading said members whereby the inner elementis firmly bound to the outer element at opposed points.

2. In an extension shade roller formed of separate .sections whose innerends terminate in thin metal tubes capable of teleseoping one within theother, the hereindescribed means for looking these tubes in telesoopedrelation, comprising two elongated and separate clamping members heldtogether as to lengthwise movements and slidably contained within thesmaller tube and each having curved outer surfaces that conform to posedrelation, the smaller tube having an elongated slot which opens outthrough its end, and a screw passed through said tubes and slot andthreaded into one clamping member and impinged against the otherclamping member whereby said members are spread apart, thereby causingthe inner tube to bind against the outer tube throughout the area ofsaid curved surfaces.

hereto.

DANIEL HOYT.

